Zf Friedrichshafen Ag

Suryanto Hendrawan

Stefan Beck

Johannes Kaltenbach

Peter Ziemer

Matthias Reisch

Martin Brehmer

Wolfgang Rieger

Michael Wechs

Matthias Horn

Jens Moraw

Thomas Rosemeier

Raffael Kuberczyk

Gerhard Niederbrucker

Viktor Warth

Anton Fritzer

Bernd Unseld

Martin Rattay

Lara Ruth Turner

Michael Roske

Juri Pawlakowitsch

Max Bachmann

Oliver Bayer

A transmission (G) includes an input shaft (GW), an output shaft (GW), an electric machine (EM), a plurality of planetary gear sets (P-PP-P), and gear-implementing shift elements (S-SS-S). Via engagement of a first of the gear-implementing shift elements (SS), which is a force-locking shift element having a variable torque transmission capacity, the input shaft (GW) and an element (EE) of one of the planetary gear sets (PP) can be brought into a fixed rotational speed relationship with respect to each other. Another element (EEE) of one of the planetary gear sets (PPP) is permanently connected to a rotor (R) of the electric machine (EM). By engaging an auxiliary shift element (ZS,ZSa,ZSb), which is a form-locking shift element, the rotor (R) and the input shaft (GW) can be brought into a fixed rotational speed relationship with respect to each other.

Transmission for a motor vehicle, drive train and method for operating a transmission

A transmission for a motor vehicle wherein the drive shaft (An) is rotationally fixedly connectable by the first shift element (K) to the first shaft () and by the second shift element (K) to the second shaft (). The second shaft () is rotationally fixedly connectable by the fifth shift element (B) to the housing (). The third shaft () is rotationally fixedly connected to the third gear set element of the second planetary gear set (RS) and to the first gear set element of the third planetary gear set and is rotationally fixedly connectable by the sixth shift element (B) to the housing (). The second gear set element of the third planetary gear set (RS) is rotationally fixedly connected to the output shaft (Ab), and the third gear set element of the third planetary gear set (RS) is rotationally fixedly connected to the second shaft ().

Vehicle transmission

A transmission for a motor vehicle wherein the drive shaft (An) is rotationally fixedly connectable by the first shift element (K) to the first shaft () and the first shaft is rotationally fixedly connectable by the second shift element (B) to the housing (). A sun gear of the first planetary gear set (RS) is rotationally fixedly connectable by the third shift element (K) to the drive shaft (An). A carrier of the first planetary gear set (RS) is rotationally fixedly connected to the output shaft (Ab) and to a ring gear of the second planetary gear set (RS). A ring gear of the first planetary gear set (RS) is rotationally fixedly connected to the second shaft (), wherein the second shaft () is rotationally fixedly connectable by the fourth shift element (B) to the housing ().

Growing community of inventors

Constance, Germany

Suryanto Hendrawan